Invalid prefix in RA in errors.log on Thinkpad

angheloko · 2012-04-09 14:49:56

Hi All,

I was just doing some random log checking when I found this in my errors.log:

...
2012-04-09T22:37:22+08:00 navi dhcpcd[691]: wlan0: invalid prefix in RA
2012-04-09T22:38:17+08:00 navi dhcpcd[691]: wlan0: invalid prefix in RA
2012-04-09T22:38:44+08:00 navi dhcpcd[691]: wlan0: invalid prefix in RA
...

I am not sure when this started to happen but this wasn't there last time I checked.

I am running Arch on a Thinkpad Edge 11.

Below are some additional info. Any help on clarifying what's happening or how to fix this (if it is an issue) is greatly appreciated.

$ uname -a
Linux navi 3.3.1-1-ARCH #1 SMP PREEMPT Tue Apr 3 06:46:17 UTC 2012 x86_64 Intel(R) Core(TM) i3 CPU U 380 @ 1.33GHz GenuineIntel GNU/Linux

$ lspci
00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 02)
00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 02)
00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06)
00:1a.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06)
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 06)
00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 06)
00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 (rev 06)
00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 5 (rev 06)
00:1c.5 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 6 (rev 06)
00:1d.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a6)
00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 06)
00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 4 port SATA AHCI Controller (rev 06)
00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 06)
00:1f.6 Signal processing controller: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem (rev 06)
03:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000
09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers (rev 02)
ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 02)
ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 02)
ff:02.1 Host bridge: Intel Corporation Core Processor QPI Physical 0 (rev 02)
ff:02.2 Host bridge: Intel Corporation Core Processor Reserved (rev 02)
ff:02.3 Host bridge: Intel Corporation Core Processor Reserved (rev 02)

$ dmesg -T | egrep wlan0
[Mon Apr  9 22:05:51 2012] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[Mon Apr  9 22:05:53 2012] wlan0: authenticate with 00:18:e7:ff:1d:04 (try 1)
[Mon Apr  9 22:05:53 2012] wlan0: authenticated
[Mon Apr  9 22:05:53 2012] wlan0: associate with 00:18:e7:ff:1d:04 (try 1)
[Mon Apr  9 22:05:53 2012] wlan0: RX AssocResp from 00:18:e7:ff:1d:04 (capab=0x431 status=0 aid=4)
[Mon Apr  9 22:05:53 2012] wlan0: associated
[Mon Apr  9 22:05:53 2012] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[Mon Apr  9 22:07:04 2012] [UFW BLOCK] IN=wlan0 OUT= MAC=8c:a9:82:01:e5:56:00:18:e7:ff:1d:04:08:00 SRC=192.168.0.1 DST=192.168.0.106 LEN=335 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=UDP SPT=1900 DPT=48861 LEN=315 
[Mon Apr  9 22:07:05 2012] [UFW BLOCK] IN=wlan0 OUT= MAC=8c:a9:82:01:e5:56:00:18:e7:ff:1d:04:08:00 SRC=192.168.0.1 DST=192.168.0.106 LEN=337 TOS=0x00 PREC=0x00 TTL=64 ID=1 DF PROTO=UDP SPT=1900 DPT=48861 LEN=317 
[Mon Apr  9 22:45:05 2012] [UFW BLOCK] IN=wlan0 OUT= MAC=8c:a9:82:01:e5:56:00:18:e7:ff:1d:04:08:00 SRC=192.168.0.1 DST=192.168.0.106 LEN=54 TOS=0x00 PREC=0x00 TTL=64 ID=716 DF PROTO=UDP SPT=53 DPT=43686 LEN=34

Edit: Added more info

Last edited by angheloko (2012-04-09 14:59:44)

fimble · 2012-05-01 13:42:17

same messages in erros.log here. Samsung NP350.
$ dmesg -T | egrep wlan0

[Вт. мая  1 22:28:34 2012] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[Вт. мая  1 22:28:36 2012] wlan0: authenticate with 84:c9:b2:51:6e:9b (try 1)
[Вт. мая  1 22:28:36 2012] wlan0: authenticated
[Вт. мая  1 22:28:36 2012] wlan0: associate with 84:c9:b2:51:6e:9b (try 1)
[Вт. мая  1 22:28:36 2012] wlan0: RX AssocResp from 84:c9:b2:51:6e:9b (capab=0x431 status=0 aid=2)
[Вт. мая  1 22:28:36 2012] wlan0: associated
[Вт. мая  1 22:28:36 2012] wlan0: moving STA 84:c9:b2:51:6e:9b to state 1
[Вт. мая  1 22:28:36 2012] wlan0: moving STA 84:c9:b2:51:6e:9b to state 2
[Вт. мая  1 22:28:36 2012] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[Вт. мая  1 22:28:37 2012] wlan0: moving STA 84:c9:b2:51:6e:9b to state 3

Last edited by fimble (2012-05-01 13:43:37)

podosinovik · 2012-06-22 17:03:30

Hi.
May be I'm too late. Nevertheless.

INTRO

I came across this kind of log files pollution today. Tried hard to google to find the cure. Finally I decided to look into the sources of dhcpcd and found out this message is related to ipv6, namely dhcpcd doesn't respect some linklocal requests. Next thing I discovered was my home router has ipv6 support i couldn't switch off and type of connection was that same 'linklocal' by default.

SOLUTION

Setup different type of ipv6 connection on your router or whatever.

Don't bother:

sudo echo noipv6rs >> /etc/dhcpcd.conf
sudo rc.d restart network

--

"it takes all the running you can do..." man

Arch Linux

#1 2012-04-09 14:49:56